Results 71 to 80 of about 26,126 (298)

Organic residues and Parachlorella microalgae favor the growth and gas exchange of cedar [PDF]

open access: yesScientia Agricola
Using organic residues and bioinputs is a promising and sustainable practice to produce seedlings with forest essences, such as Cedrela fissilis Vell. (cedar), a vulnerable species close to extinction due to intensive exploitation in native areas.
Cleberton Correia Santos   +7 more
doaj   +1 more source

Soil aggregation under different management systems [PDF]

open access: yes, 2012
Considering that the soil aggregation reflects the interaction of chemical, physical and biological soil factors, the aim of this study was evaluate alterations in aggregation, in an Oxisol under no-tillage (NT) and conventional tillage (CT), since over ...
Feller, C.   +4 more
core   +3 more sources

Alterations in plant architecture and physiology allow maize to sustain yield after early defoliation

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Maize (Zea mays L.) tolerance to early defoliation is shaped by genotype‐specific physiological and morphological responses. Defoliation disrupts the source–sink balance, altering carbon allocation and plant development. Understanding these responses is crucial for optimizing breeding programs and agronomic management.
Danielle de Oliveira   +8 more
wiley   +1 more source

Degradation and Restoration of Anthrosols in the Amazonia Under Contrasting Agricultural Practices: Evidence From the Assessment of Soil Physical Quality and Carbon and Nitrogen Stocks

open access: yesJournal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
ABSTRACT This study was conducted to assess the impact of different agricultural practices on the physical quality and the carbon and nitrogen stocks of anthropogenic soils used by smallholder farmers in Central Amazonia, Brazil. Undisturbed and disturbed soil samples were collected at three depths (0–0.10 m, 0.10–0.20 m, and 0.20–0.30 m), with five ...
Heitor Marcel da Silva Ribeiro   +9 more
wiley   +1 more source

Soil-atmosphere exchange of nitrous oxide, nitric oxide, methane, and carbon dioxide in logged and undisturbed forest in the Tapajos National Forest, Brazil. [PDF]

open access: yes, 2016
Selective logging is an extensive land use in the Brazilian Amazon region. The soil?atmosphere fluxes of nitrous oxide (N2O), nitric oxide (NO), methane (CH4), and carbon dioxide (CO2) are studied on two soil types (clay Oxisol and sandy loam Ultisol ...
ASNER, G. P.   +6 more
core  

Tensile Strength: A Pedologist's Perspective on Variability in Cohesive and Non‐Cohesive Horizons From Brazil's Coastal Tablelands

open access: yesJournal of Plant Nutrition and Soil Science, Volume 189, Issue 1, Page 36-48, February 2026.
ABSTRACT Background Previous research has underscored the importance of evaluating soil consistency for accurate determination of cohesive character and mechanical properties. Although qualitative assessments by pedologists are pertinent, they exhibit inherent subjectivity that may compromise accuracy.
Jaedson Cláudio Anunciato Mota   +8 more
wiley   +1 more source

Genetic conformity assessment of C35 citrange seedlings by SSR markers : [P6] [PDF]

open access: yes, 2008
C35 citrange rootstock has been widely investigated in the last decades in .mast countries that produce Citrus and knows an increasing interest of the citrus growers.
Appere, M.   +7 more
core  

Nutrient uptake and use efficiency by tropical legume cover crops at varying pH of an Oxisol. [PDF]

open access: yes, 2014
The objective of our study was to evaluate growth and nutrient uptake parameters of 16 tropical legume cover crops under three soil pH (5.1, 6.5, and 7.0) of an ...
FAGERIA, N. K., NASCENTE, A. S.
core   +1 more source

Host Status of Brazilian Native Tree Species to Root‐Knot Nematodes

open access: yesForest Pathology, Volume 56, Issue 1, February 2026.
ABSTRACT Root‐knot nematodes (RKN, Meloidogyne spp.) are among the most important plant pathogenic organisms, causing significant damage, with a wide geographical distribution and being difficult to control. The ability of these nematodes to parasitize native trees from Brazilian biomes is little understood.
Ismail Teodoro de Souza Júnior   +6 more
wiley   +1 more source

Geoestatística e atributos do solo em áreas cultivadas com cana-de-açúcar Geostatistics and soil attributes in area cultivated with sugar cane

open access: yesCiência Rural, 2010
Em solos sob cultivo de cana-de-açúcar, o tráfego intenso de máquinas agrícolas pode provocar estado de compactação ao solo. Portanto, o objetivo deste trabalho foi caracterizar a variabilidade espacial de atributos físicos e teor de matéria orgânica de ...
Zigomar Menezes de Souza   +2 more
doaj  

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